Brisbane delist Liam Dawson.
The 22-year-old played 18 games for the Lions in his four seasons at the club, but only made one senior appearance in the past two years and didn't feature at all in 2018.
"Liam has been a valued team member throughout the time he's been here and has strongly contributed to the club," Lions general manager of football David Noble said.
"We wish him all the best for the future."